Re: proposal: function parse_ident

From: Teodor Sigaev <teodor(at)sigaev(dot)ru>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: proposal: function parse_ident
Date: 2016-03-14 16:39:29
Message-ID: 56E6E941.7030507@sigaev.ru
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

> I afraid so I cannot to fix this inconsistency (if this is inconsistency - the
> binary values are same) - the parameter of function is raw string with processed
> escape codes, and I have not any information about original escape sequences.
> When you enter octet value, and I show it as hex value, then there should be
> difference. Buy I have not information about your input (octet or hex). I have
> the original string of SQL identifier inside parser, executor, but I have not
> original string of function parameter inside function (not without pretty
> complex and long code).
Ok, agree

>
> I am trying describe it in doc (I am sorry for my less level English) in new
> patch. Fixed duplicated oid too.
Edited a bit + fix some typos and remove unneeded headers, patch attached

Sorry, I can't find all corner-cases at once, but:
SELECT parse_ident(E'"c".X XXXXXXXXXX');
ERROR: identifier contains disallowed characters: "\"c"

Error message wrongly points to the reason of error.

--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/

Attachment Content-Type Size
parse_ident-13.patch binary/octet-stream 14.9 KB

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Alvaro Herrera 2016-03-14 16:40:57 Re: [COMMITTERS] pgsql: Refactor to create generic WAL page read callback
Previous Message Tom Lane 2016-03-14 16:30:33 Re: [PATCH] Use correct types and limits for PL/Perl SPI query results